Ultrasonic water meter plastic pipe section structure

Abstract

The utility model provides an ultrasonic water meter plastic pipe section structure which is characterized by comprising two sleeves which are symmetrically arranged, and the ends of the two sleeves are fixedly connected; the pipe section is arranged outside the two sleeves in a sleeving manner; reflecting pieces are clamped and embedded in the sleeves, and middle mounting holes are formed in the connecting ends of the two sleeves and the corresponding pipe sections. Insert injection molding is adopted between the sleeve and the reflecting plate of the pipe section structure, the reflecting plate and the sleeve are subjected to injection molding together in the internal injection molding process, and firmness is guaranteed.

Description

Technical Field

[0001] The utility model relates to a plastic pipe section structure of an ultrasonic water meter. Background Art

[0002] At present, the installation method of the plastic pipe section reflector is that after the pipe section is injection-molded, the metal reflector is assembled to the pipe section later. However, the above installation method may have problems such as the reflector being washed away by water flow during use or the plastic pipe section being cracked due to improper installation or inconsistent dimensions of the reflector and the plastic pipe section. Content of the Utility Model

[0003] The purpose of the utility model is to provide a plastic pipe section structure of an ultrasonic water meter for the existing technologies with the above problems. The sleeve of this pipe section structure and the reflector are integrally formed by insert injection molding, and the reflector and the sleeve are injection-molded together during the internal injection process to ensure firmness.

[0004] The purpose of the utility model can be achieved by the following technical solutions: A plastic pipe section structure of an ultrasonic water meter, characterized in that it includes:

[0005] Sleeves, there are two sleeves and they are symmetrically arranged, and the ends of the two sleeves are connected and fixed;

[0006] A pipe section, which is sleeved outside the two sleeves;

[0007] A reflector is clamped inside the sleeve, and intermediate mounting holes are provided at the connecting ends of the two sleeves and the corresponding pipe section.

[0008] Further, two transducer mounting holes are provided on the pipe section.

[0009] Further, both ends of the pipe section have a threaded structure.

[0010] Further, the connecting ends of the two sleeves have a groove and a boss, and the groove and the boss are snap-connected.

[0011] Further, after the two sleeves are connected, they form a sleeve group. The diameter of the middle part of the sleeve group is smaller than that of the two ends, and the middle part of the sleeve group has an annular groove.

[0012] Further, clamping grooves are provided on the inner side walls at both ends of the sleeve group, the reflector is clamped in the clamping grooves, the reflector is C-shaped and has a reflector plate with an angle of 45° with the reflector body in the middle, and the reflector plate is directly below the transducer mounting hole of the pipe section.

[0013] Further, the part of the edge of the reflector clamped into the clamping groove has a fishbone barb structure.

[0014] Further, the sleeve and the reflector are formed by insert injection molding, and the pipe section and the sleeve group are formed by secondary injection molding.

[0015] Compared with the prior art, the advantages of the present application are as follows: The sleeve of the pipe section structure and the reflector are formed by insert injection molding, and the reflector and the sleeve are injection molded together during the internal injection molding process to ensure firmness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the pipe section;

[0017] Figure 2 is a schematic side view of the pipe section;

[0018] Figure 3 is a schematic end view of the pipe section;

[0019] Figure 4 is a cross-sectional view of the pipe section;

[0020] Figure 5 is a schematic diagram of the sleeve;

[0021] Figure 6 is a schematic diagram of the reflector;

[0022] In the figure, 1 is the pipe section; 11 is the transducer mounting hole; 12 is the intermediate mounting hole; 13 is the threaded structure; 2 is the sleeve; 21 is the clamping groove; 22 is the annular groove; 23 is the groove; 24 is the boss; 3 is the reflector; 31 is the reflector plate; 32 is the fishbone barbed structure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following are specific embodiments of the present invention and in conjunction with the drawings, the technical solutions of the present invention will be further described.

[0024] As Figures 1-6 shown, a plastic pipe section structure of an ultrasonic water meter, characterized in that it includes:

[0025] The sleeve 2, which has two and is symmetrically arranged, and the ends of the two sleeves 2 are connected and fixed;

[0026] The pipe section 1, which is sleeved outside the two sleeves 2;

[0027] The reflector 3 is clamped inside the sleeve 2, and intermediate mounting holes 12 are provided at the connection ends of the two sleeves 2 and the corresponding pipe section 1. The intermediate mounting hole 12 is used to mount the temperature sensor.

[0028] Further, both ends of the pipe section 1 have a threaded structure 13. The threaded structure 13 facilitates connection with external pipe fittings.

[0029] Furthermore, the connecting ends of the two sleeves 2 are provided with a groove 23 and a boss 24, and the groove 23 and the boss 24 are snap-connected.

[0030] Furthermore, after the two sleeves 2 are connected, they form a sleeve group. The diameter of the middle part of the sleeve group is smaller than that of the two ends, and the middle part of the sleeve group has an annular groove 22. The sleeve 2 is provided with a groove 23 and a boss 24 structure. The two sleeves 2 are positioned through the cooperation of the groove 23 and the boss 24 to form the overall internal structure of the product (i.e., the sleeve group). The middle part of the sleeve 2 has a structure of an annular groove 22. When secondary injection molding is carried out, the plastic liquid will flow into the annular groove 22, making the combination of the pipe section 1 and the sleeve group more firm.

[0031] Furthermore, two transducer mounting holes 11 are opened on the pipe section 1, and the positions of the transducer mounting holes 11 correspond to the sleeves 2 inside the pipe section 1.

[0032] Furthermore, clamping grooves 21 are opened on the inner side walls at both ends of the sleeve group. The reflector 3 is clamped in the clamping grooves 21. The reflector 3 is C-shaped and has a reflector plate 31 with an included angle of 45° with the main body of the reflector 3 in the middle. The reflector plate 31 is located directly below the transducer mounting hole 11 of the pipe section 1. The included angle of 45° between the reflector 3 and the reflector plate 31 ensures the reception of signals. At the same time, the reflector plate 31 is directly below the transducer mounting hole 11, making the signal reception more accurate.

[0033] Furthermore, the part of the edge of the reflector 3 clamped into the clamping groove 21 has a fishbone barbed structure 32. This fishbone barbed structure 32 ensures a more firm combination when injection molding with the sleeve 2. (Insert molding: Install the pre-prepared insert in the mold. In this application, the insert is the reflector 3, and then inject the molten material to combine and solidify with the reflector 3. In this way, the combination of the sleeve 2 and the reflector 3 is more firm.)

[0034] Furthermore, the sleeve 2 and the reflector 3 are formed by insert injection molding, and the pipe section 1 and the sleeve group are formed by secondary injection molding.

[0035] The structure of the pipe section 1 is formed by two injection moldings:

[0036] 1. For the first injection molding, the reflector 3 is clamped in the clamping groove 21 of the sleeve 2, and insert injection molding is carried out to make the combination of the reflector 3 and the sleeve 2 more firm;

[0037] 2. For the second injection molding, the product formed by the first injection molding is subjected to secondary injection molding to form the formed pipe section 1.

[0038] The above technical solution of the present utility model provides a solution significantly different from the prior art for the technical problem of the overly single solution of the prior art. The parts not involved in the technical solution of this application are the same as the prior art or can be implemented using the prior art, and will not be elaborated here.

[0039] The technical solutions in the above embodiments have clearly and completely described the content of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

Claims

1. An ultrasonic water meter plastic pipe section structure, characterized in that: It includes: The sleeves are provided with two sleeves and are symmetrically arranged, and the ends of the two sleeves are connected and fixed; A pipe section, which is sleeved outside the two sleeves; A reflector is embedded inside the sleeve, and a middle mounting hole is provided at the two sleeve connection ends and the corresponding pipe sections.

2. The ultrasonic water meter plastic pipe section structure according to claim 1, characterized in that: Two transducer mounting holes are arranged on the pipe section.

3. The ultrasonic water meter plastic pipe section structure according to claim 2, characterized in that: Both ends of the pipe section have thread structures.

4. The ultrasonic water meter plastic pipe section structure according to claim 3, characterized in that: The two sleeve connection ends are provided with a groove and a boss, and the groove and the boss are buckled and connected.

5. The ultrasonic water meter plastic pipe section structure according to claim 4, characterized in that: The two sleeves are connected to form a sleeve group, the diameter of the middle part of the sleeve group is smaller than the diameter of the two ends, and the middle part of the sleeve group is provided with an annular groove.

6. The ultrasonic water meter plastic pipe section structure according to claim 5, characterized in that: The inner side walls at both ends of the sleeve group are provided with embedding grooves, and the reflector is embedded in the embedding grooves. The reflector is C-shaped and has a reflector plate in the middle that forms an angle of 45° with the reflector body. The reflector plate is located directly below the transducer mounting hole of the pipe section.

7. The ultrasonic water meter plastic pipe section structure according to claim 6, characterized in that: The portion where the edge of the reflector is embedded in the embedding groove has a fishbone barb structure.

8. The ultrasonic water meter plastic pipe section structure according to claim 7, characterized in that: The sleeve and the reflector are molded by insert injection molding, and the pipe section and the sleeve assembly are molded by secondary injection molding.

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